408222880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:559

約数の個数: 144

約数和(自身を含む): 1080221184

約数和(自身を除く): 671998304

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 169, 208, 248, 260, 310, 338, 403, 416, 487, 496, 520, 620, 676, 806, 845, 974, 992, 1040, 1240, 1352, 1612, 1690, 1948, 2015, 2080, 2435, 2480, 2704, 3224, 3380, 3896, 4030, 4870, 4960, 5239, 5408, 6331, 6448, 6760, 7792, 8060, 9740, 10478, 12662, 12896, 13520, 15097, 15584, 16120, 19480, 20956, 25324, 26195, 27040, 30194, 31655, 32240, 38960, 41912, 50648, 52390, 60388, 63310, 64480, 75485, 77920, 82303, 83824, 101296, 104780, 120776, 126620, 150970, 164606, 167648, 196261, 202592, 209560, 241552, 253240, 301940, 329212, 392522, 411515, 419120, 483104, 506480, 603880, 658424, 785044, 823030, 838240, 981305, 1012960, 1207760, 1316848, 1570088, 1646060, 1962610, 2415520, 2551393, 2633696, 3140176, 3292120, 3925220, 5102786, 6280352, 6584240, 7850440, 10205572, 12756965, 13168480, 15700880, 20411144, 25513930, 31401760, 40822288, 51027860, 81644576, 102055720, 204111440, 408222880]

約数ペア:

[(1, 408222880), (2, 204111440), (4, 102055720), (5, 81644576), (8, 51027860), (10, 40822288), (13, 31401760), (16, 25513930), (20, 20411144), (26, 15700880), (31, 13168480), (32, 12756965), (40, 10205572), (52, 7850440), (62, 6584240), (65, 6280352), (80, 5102786), (104, 3925220), (124, 3292120), (130, 3140176), (155, 2633696), (160, 2551393), (169, 2415520), (208, 1962610), (248, 1646060), (260, 1570088), (310, 1316848), (338, 1207760), (403, 1012960), (416, 981305), (487, 838240), (496, 823030), (520, 785044), (620, 658424), (676, 603880), (806, 506480), (845, 483104), (974, 419120), (992, 411515), (1040, 392522), (1240, 329212), (1352, 301940), (1612, 253240), (1690, 241552), (1948, 209560), (2015, 202592), (2080, 196261), (2435, 167648), (2480, 164606), (2704, 150970), (3224, 126620), (3380, 120776), (3896, 104780), (4030, 101296), (4870, 83824), (4960, 82303), (5239, 77920), (5408, 75485), (6331, 64480), (6448, 63310), (6760, 60388), (7792, 52390), (8060, 50648), (9740, 41912), (10478, 38960), (12662, 32240), (12896, 31655), (13520, 30194), (15097, 27040), (15584, 26195), (16120, 25324), (19480, 20956)]